Thousand Oaks authorities on Wednesday arrested three men believed to have been involved in a possibly gang-related fight, according to investigators.

The incident occurred April 7 in the 700 block of Moorpark Road, authorities said. Deputies said the victim was challenged to a fight by three males and then battered by one of them. The three made gang signs before and after the fight, authorities said.

Authorities said they identified the suspects as Francisco Fernandez, 21, Alain Alvarez, 24, and Irvin Arjona, 19, all of Thousand Oaks and documented members of gangs in the city.

Investigators said they got search warrants for the men's residences in the 800 block of Warwick Avenue and 2000 block of Los Feliz Drive in Thousand Oaks and served the warrants around 7 a.m. Wednesday. Investigators said they found evidence of each suspect’s gang affiliation and at the residence on Warwick Avenue found a short-barrel shotgun and metal knuckles.

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Alvarez, Fernandez and Arjona were detained during the search warrants and later taken into custody, authorities said.

Alvarez was arrested on suspicion of battery, disturbing the peace by fighting, conspiracy to commit a crime, participation in a criminal street gang and multiple weapons violations, authorities said. Arjona and Fernandez were arrested on suspicion of disturbing the peace by fighting, participating in a criminal street gang and conspiracy to commit a crime, authorities said.

Bail for Alvarez and Fernandez was set at $100,000 and Arjona’s bail was set at $210,000. All three remain in custody.